US2481801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna array
Assignee: AMERICAN PHENOLIC Corp
•
Filing: 1945-12-08
•
Granted: 1949-09-13
•
Expires: 1965-12-08
Abstract
No abstract record available.
Inventors
- 👤 Charles F Valach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:32
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/06; H01Q9/08; F; F16; F16B; F16B7/00; F16B7/04; F16B7/0433; F16B7/044; F16B7/048; Y; Y10; Y10T; Y10T403/00; Y10T403/44; Y10T403/57; Y10T403/5741; Y10T403/71; Y10T403/7129; Y10T403/7141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2199050A
Cited
US2283914A
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US2213276A
Cited
GB519883A
Cited
US2240298A
Cited
US2255520A
Cited
US2292791A
Cited
US2287220A
Cited
US2299218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |